January Weather in Hartsville, United States

Last updated: June 24, 2025

In January, the average temperature in Hartsville, United States hovers around 9°C (48°F), with a minimum low of -10°C (14°F) and a maximum high of 27°C (80°F). Expect 81 mm (3.2 in) of precipitation spread over 9 days, while the air remains quite humid with an average of 86%.

January Temperature in Hartsville

In January in Hartsville, the average temperature is 9°C (48°F). Maximums can reach 27°C (80°F) and minimums can be as low as -10°C (14°F). Be prepared for a wide range of temperatures while traveling, so pack accordingly!

January Weather in Hartsville: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hartsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartsville, January typically has an average temperature of 9°C (48°F), with highs reaching up to 27°C (80°F) and lows dropping to around -10°C (14°F).

Data source: Temperature data for Hartsville generated using information from the Copernicus Climate Change Service.

January Precipitation in Hartsville

In Hartsville in January, the precipitation amount is 81 mm (3.2 in) spread over a duration of 9 days.

January Precipitation Trends in Hartsville

The chart displays monthly precipitation patterns in Hartsville, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Hartsville, January typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Hartsville

In Hartsville in January, humidity is 86%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that wraps around you, making outdoor activities uncomfortable and travel less enjoyable.

January Average Humidity in Hartsville

This chart illustrates the average monthly humidity levels in Hartsville, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Hartsville is approximately 86%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Hartsville

In Hartsville in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Hartsville for better planning.

Maximum UV Index Levels in Hartsville for January

The chart shows the monthly maximum UV Index (UVI) for Hartsville in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Hartsville typically reaches 4, which falls under the moderate exposure category.

Data source: Hartsville January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Hartsville Compares to Other Months

Weather in Hartsville varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hartsville, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hartsville, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (48°F)	81 mm (3.2 inches)	86%	moderate
February Weather	12°C (53°F)	99 mm (3.9 inches)	85%	high
March Weather	14°C (57°F)	70 mm (2.8 inches)	84%	very high
April Weather	18°C (65°F)	95 mm (3.7 inches)	82%	very high
May Weather	23°C (73°F)	110 mm (4.3 inches)	83%	extreme
June Weather	26°C (78°F)	125 mm (4.9 inches)	82%	extreme
July Weather	27°C (82°F)	128 mm (5.1 inches)	80%	extreme
August Weather	27°C (81°F)	125 mm (4.9 inches)	74%	very high
September Weather	25°C (77°F)	151 mm (5.9 inches)	75%	very high
October Weather	20°C (69°F)	59 mm (2.3 inches)	79%	very high
November Weather	12°C (55°F)	69 mm (2.7 inches)	87%	high
December Weather	10°C (50°F)	141 mm (5.6 inches)	87%	moderate